Drainage system
AssigneeHydro International plc
InventorsDaniel Stuart Jarman, Jeremy Paul Lecornu
Life of this patent
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Abstract
There is described a drainage system comprising: an inlet pipe; and an energy dissipater comprising a dissipation chamber. The dissipation chamber has a dissipater inlet fluidically connected to the inlet pipe and a dissipater outlet arranged to discharge fluid from the dissipation chamber. The dissipater inlet extends between a first end and a second end. A wall of the inlet pipe extends tangentially from the dissipation chamber so as to define the first end and such that, in use, fluid is discharged into the dissipation chamber in a tangential direction, thereby inducing a circulating flow within the dissipation chamber about an axis of the dissipation chamber. The width of the dissipater inlet in a direction parallel to the axis decreases from the first end to the second end.
Claims17
A drainage system comprising:
- an inlet pipe;
- and
- an energy dissipater comprising a tube, the tube defining a dissipation chamber, the dissipation chamber having a dissipater inlet provided in a wall of the tube, the dissipater inlet fluidically connected to the inlet pipe and a dissipater outlet arranged to discharge fluid from the dissipation chamber,
- wherein the dissipater inlet extends between a first end and a second end upstream of the first end and wherein a wall of the inlet pipe extends tangentially from the dissipation chamber at the first end such that, in use, fluid is discharged into the dissipation chamber in a tangential direction, thereby inducing a circulating flow within the dissipation chamber about an axis of the dissipation chamber,
- wherein the width of the dissipater inlet in a direction parallel to the axis decreases from the first end to the second end, and
- wherein the width of the dissipater inlet in a direction parallel to the axis does not increase from the first end to the second end.
Dependencies are inferred from the claim text.